IOWA ACADEMY OF SCIENCE 
71 
198. Ueomyces Silphii (Syd.) Arth. [Z7. Junci Tul.] 
I on Silphium laciniatum L. (Herb. Arthur.) 
II, III on Juncus Interior Wiegand. 
A single sorus of the ^cial stage was found while the other stages are very 
common. 
199. Ueomyces Teifolii (Hedw. f.) Lev. 
I, II, III on Tri folium repens L. 
Rather abundant on the white clover, but not found on the red. 
200. PUCCINIA ALBIPEEIDIA Arth. 
I on Rihes Cynoslati L., R. florida L’Her., and R. gracile MichsJ. 
Very abundant on both species of gooseberries, but scarce on the currant. 
It is possible that two species are included here but as the corresponding forms 
on Carex have not been collected it is rather difficult to say. 
201. Petccinia Anemones-Vieginianae Schw. 
On Anemone virginiana. 
Common from early spring to late autumn. Aecia and telia both lacking. 
202. PucciNiA ANGUSTATA Peck. 
Ill on Scirpus atrovirens L. 
Pound sparingly in late autumn. The aecia, which are on Lycopus have not 
been collected here. 
203. PucciAiA Asparagi DC. 
II, III on Asparagus officinalis L. 
Common, especially on wild asparagus, sometimes becoming a pest in gardens. 
204. PUCCINIA Asteeis Duby. 
On Aster corclifolius L. and A. paniculatus Lam. 
Common and often very abundant. Aecia and uredinia absent. 
205. PucciNiA Caeicia-asteeis Arth. [Aecidium asteeatum Schw.] 
I on Aster cordifolius L. 
II, III on Carex ceplialopTiora Muhl. 
Rather rare, both 93cia and the other forms appearing in midsummer. 
206. PucciNiA Caeicis-eeigeeontis Arth. lAecidium erigeronatum Schw.] 
I on Erigeron annuus (L.), Pers., E. canadense L. (Leptilion Britton), and E. 
philadelpMcus L. 
Abundant, but the telial stage has not yet been collected. 
207. PUCCINIA Caeicis-solidaginis Arth. 
I on Solidago latifolia E. (S. flexicaulis L.), S. serotina Ait., and S. uXmi- 
folia Muhl. 
Common but not abundant. 
208. PucciNiA CiECAEAE Pers. 
On Gircaea lutetiana L. 
Common and rather abundant, Aecia and uredinia wanting. 
